Carbureter.



C. DE LUKACSEVICS.

CARBURETER.

APPLICATION FILED JUNE 24.1916.

Patented 001;. 30,1917.

SHEET 1.

2 SHEETS s 1 b p ma m i 2 we v a 5/ 5 52 r fl C. DE LUKACSEVICS.

CARBURETER.

APPLICATION FILED JUNE 24. 1916.

Patented- Oct. 30,1917.-

2 SHEETS-4min 2.

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Application filed June 24, 1916; Serial No.'1o5,v03.-

To all whom it may concern:

Be 1t known that I, CHARLES on 'LUKAosn vies, a citizen of the United Stategresiding at New York, in the county of New York, and State of l ewYork, have invented new and useful Improvements in Carbureters,

of which thefollowing is a specification.

This invention relates to nnprovements 1n carbureters for internal combustion engines gasolene from the fuel'chamber ofthe carbureter to themixing chamben The invention consists-more particularly 1n nnprovements 1n the construction and-relae tion of the valves which control thedelivery of air and gasolene to themixing chambers and motor suction tube, in the relation of these valves to one anotherwhereby their operations are correlated and in the construction of the mixing, chambers and their valve 6-. 1 The wall 4;. at. its upperend opens mto an. outer mixing chamber! 7 whlch 1s relation to one another and. to said valves,

theohjects served being an exact regulation ofthe quantum and proportions of the fuels mixture with regard to any speed in the normal range ofthe engine, certainty and" simplicity in the operations o'f the, valves, a

thorough mixingof the airand gas, and the t eliminatlon of any necessity for. adjustments. ThQlIIVGIltlOll also consists incer tain detail. features of structure, combina-. tion and relation whlch will appearas the description proceeds,

An: embodiment of the inventionsisillus trated in the: accompanying drawings, where d'er'r9 which is? providedwith openings. 12

through-which .gasolene is givenofi from.

ill 1%- Figure 1 is a plan view vof acarbureter in whichthe features of theinventionare L incorporated, with parts, shown in section ;.5

Fig. 2- is .acentrall longitudinal sectional view thereof Fig. 3 is a horizontal sectional view. on the line 3 3. 0f Fig.2;

Fig his a detail" pla Fig. 5 is I qby it-may litsnugly' 1n the angleformed by:

the shouldeft) and the wall 10 g. and the horn detail elevation, partly in section, of; the

valve which controlsthe gasolene vapor- I zontalpo.rtloewofitithe Vitl'VQflSPI'OVldGd with given oli" by the distributingelement;

Fig. 6 1s a detail plan and Fig. -7 is adetail elevation, partly i i-section, of the; valve which controlsthe admission oi the air and elsne rarer te theil'inetua riug themes.

element'ell is in the. form of a ringandm closely. surrounds the wall 4 withinathcvfuel chamber. Theelement llis completely sub- 8 is; a detailplan and Fig. 9 is a detall section of'an operative'connection be-- W tween'the'valves shown inFigs. land 6;

6 and 7, e

CHARLES DE U Acs vIcs, or vnwironn, N; YWASSIGQNOBLTQEANDREW excess, or o i V specification dii' Ire tigers Patent; 30 1 7' i i Fig. 1 0 is a detailplan and -Fig ll is a" detail elevation, partly 1n -sect1on,{of sleeve g which co -acts with the valveshown in Figs.)

7 v g -,Simi larf characters. of reference designate u corresponding parts throughout'the several views" The carbureter andan'an passage 2. The fuelchamber is preferably ot'the float (feed type, and itis includes fuel chamber 1 i provided with float feed 1 mechanism 3 "of any suitable or} desired construction r The a1r passage 2 11s. defined byan annular wall r WlllChlDl'OjBCtStllfOHgll the fuel chamber at onevsidethcreof and at' its lower end 6X:

tendsfrom an air inletpipe Spreterably'f provided Wlth; an 5 ad uStable 1 regulating! arranged in concentricsurrounding relation i to $3.11 zinner .niixing chamber 8 in direct. or

tube (not shown ):.-.aw

An annular llQFlZOntal shoulder isare ranged between the upper end of the, wall and the lower ',end. -ofjthe outer wall ilOfof the mixing. chamber 7.- The felt distributing merged in the fuel-in: the chamber 1 and is:

confined against the underside ofthe shoultheelemene .rrinteene mixing chamber 7. I The openings: 12 arepreferably arranged.

meat of thesegrcupsalong agonin on circle 5 in groups along arcs ot. a common circle'and are controlled by a :valve. 13.; which 51s. prefer-ably: of theconstruction shown-1n Figsu l and. 5/, JAS shown, thisv'alve consistsot a {ring having an .L-.-shap.ed CIOSS-SQCt1OILWhe1'6-.

When the valve 13 isfully open the openings 12 are completely disclosed or uncovered through the slots 14, and when the valve 13 is closed,the openings 12 are either e11 tirely covered or else a single opening of each group may be allowed to remain uncovered to enable the engine to be run at a minimum or throttling speed, as is well known in the art. p

The communication of the air passage 2 with the inlet pipe is controlled by a disk valve 15 which seats against the wall of anopening 16 formed in a flange 17 at the lower end of the passage 2. The valve 15 .is slidably mounted upon astem 18 and is urged toward its seat by a spiral spring 19 surrounding said stem and bearing against said valve and against a collar 20 at the upper end of said stem. In order that the tension of the spring 19 may be regulated as de ,sired, the stem 18 has its lower end threaded and. provided with an adjusting nut 21 which is'centered in .a recess formed externally of the pipe 5 at the base or under side of the carbureten Obviously, with this arrangement, the spring 19 holds the stem elevated as far as permitted by the, nut 21 and by turning said nut said stem may be lowered or raised to. cause'the springto bear with i the same time the single annular wall-of'the chamber 8 is provided by a valve organiza- 11011 which consists of a generally cylindrical valve body 22 and a stationary sleeve 23 which surrounds and co-acts with'the valve body 22. The sleeve 23 is provided with upper and lower external and internal shoul-' ders 26L and 25 which are utilized for the support of the valve body 22. The shoulder 24 is incidentto theprovision of a-flange 26 which circumscribes the upper end of the sleeve 23' and by means of which said sleeve is supported within the carburetor casing. The cylindrical valve body22 is provided with upper and lower-external shoulders 27 and 28 which overhang and bear against the shoulders 21 and" 25. The shoulder 27 is incident to the provision of a flange 29 which circumscribes'th'e' upper end ofthe valve body 22 and fits snugly and with sealingeffect in an annular recess formed in the carbureter casing. Within the outerwall of 1 this recess a slot 30 is provided through which an operating arm 31 secured in the flange 29 projects, this arm being used to effect a rotation of the valve body 22 about of the mixture delivered to the motor suction tube is greater or less as the registry of the slots 32 and 33 is more or less complete. Figs. 2 and 3 show these slots in full registry and it follows that a maximum quantum of fuel mixture will be delivered to the motor suction tube. Obviously, by rotating the valve body 22 whereby the slots 32 will be brought partly out of registry with the slots 33, the quantum of the mixture delivered to the motor suction tube will beproportionately decreased; and if the valve body 22 be rotated until the slots are nearly but not quite wholly out of registry with the slots 33 so that the communication of the outer and inner mixing chambers7 and 8 is reduced to a minimum, the supply of fuel to the motor suction tube will be only suflicient for therunning of the engine at low or throttling speed. The valvebody 22 is provided below th slots '32 with a horizontal base 34 and below the base34c with an air chamber 35 whose wall is of generally spherical outline and serves the further function of deflecting the air that issues from the passage 2 over the openings 12 0f the shoulder 9 whereby the intimatemixture ofair and gasolene vapor within the chamber 7 will be promoted.

The wall of the air chamber 35 is provided with air inlet openings 36 and the base34L isprovided with air passages 37 The object of the'chamber 35 with the menings 36' and the passages 37, is to provide for an augmented supply of mixture when the engine is running at high speed. Normally, however, thisaugmented supply of air 1snot required; and accordingly a disk valve I 38'workin'g with relation to a seat 39 above, and from which the passages 1 37 extend, normally cuts ofl the communication of said passages'with the space above the base ing the stem 40 below the base 34 and bear- ,ing'at'its upper end ag'ainstsaid base and at its lower end against a collar or enlargement 42 at the lower end of the stem 40. As a matterof convenience, the wall of the air chamber 35 has a centrally located sleeve 43' which closely surrounds the collar f the stem40 and an extension of the collar 'The valve 38 is'mounted on an axially-located stem-l0 which, in the present em-- 20 one the stem 18 of the valve'l5, thereby serving as a retainer-and g'uidefor the stem 10 and asa retainer for the stem 18.

In order toiincrease the intimacy of the constituents of the fuel mixture a fan-like element 44, forconvenience termed a fan, is preferably arranged withinthe chamber-8;

. andin the embodimentdisclosed the hub of this element is fitted upon' the upper portion of the stem 40 between the: valve 38 and a retaining nut at the u pper'end of said stem. The gaseous mixture. which. is admitted into the chamber .8 acts on the fan 44, rotating.

the latter, and by virtue of the resistance opposed bythe friction of the fan bearings'is caused to rise in a whirling column through said chamber and through the motor suctiontube.

The operation of the valve l3is incident to an adjustment of the valve body 22 and is for .the purpose of maintaining a correct proportioning of the constituents ofthe fuel mixture for any quantum that may be de body 22, specifically, atthe junction of the wall ofthe air chamber 35 with the sleeve 43. The spring spider 45, when assembled inthis manner, is subjected to downward force whereby it will hold the valve .13 firmly on the angular seat provided therefor by the shoulder 9. and the'wall 10; and'said spring will obviously transmit the rotation* of the valve body 22 to the valve 13 whereby v the latter will reduce or increase the expo= sure of the openings 12 through the slots 1 1 in accordance with adjustments of the valve body 22 to reduce orfincrease the registry of -the slots 32 and'83'.

The carbureter, viewed externally, maybe of any desired form. and is provided with the usual attaclnnentifiange 49. In the em bodiment disclosed, the mixing. chamber 8 is. t 1 g passage" communlcatmgwith the outer continued through this flange.

I cla1m I I 1. In a carbureter for i'nternal'co'mbust on engines, in combination, an air passage, a.

fuel chamber, an annular wall separating said passage and cha1nber.andhaving'an annular horizontal shoulder at its upper end, said shoulder having openings extending-be tween its upper and lower faces, an absorb ent distributing element surrounding said annular wall within the fuel chamber and extending to said shoulder, said shoulder overhanging said element, a mixing chamber above said air passage and into which the latter opens,and anannular valve rotatably mounted on said shoulder and having slots through which said openings. may be disclosed 2. In acarbureter engines, in combination, an a1r passage, a

for internal combustion fuel chamber, .an, annular wall separating said passage and. chamber. and-=having an annular horizontal shoulder at its upper absorbent distributing element surrounding said annular wall within. the fuel chamber and extending to said. shoulder, said shoulder overhanging said element, a mixing chamber above the air passage and into which thelatt r opens, the mixing chamber having. an annular wall which forms an angle with the shoulder, and an annular.

valve of angular cross section rotatably mounted on the shoulder and in the angle formed by the shoulder andthe annular w all of'th'e mixing chamber, said valve having disclosed.

engines, in combinatioininner and. oute concentric mixing chambers, an air passage communicating with the outer chamber, .a fuel chamber, an absorbent distributing ele- "ment submerged in the fuel in the fuel chamber, the wall separating. said fuel chamber and outer mixing chamber having I openings between said chambers. through which gasolene'may be given off by the distributing element into said outer mixing.

chamber, an annularrotatable valve control-.

ling said openings, a valve organization forming a separating mu between the outer.

and inner mixing chambers and including a rotatably mounted valve body concentric to said annular valve and adjustably operable inner chamber and a spider forming an operative connection between said valve body to regulate the quantum of the mixture; which passes from the outer chamberto the andrsaid annular valve to operate the latter fromthe former.

4, In a. carbureter for internal combus 1 tion' engines, in combination, inner and outer (101108111110 mixing chambers, an: air

chamber, a fuel chamber, an absorbent dis. I

tributingr element submerged in the fuel in the. fuel chamber, Y the wall separating. said fuelp chamber [and :outermixing chamber having: openings';-between1 said chambers.

through which gasolene may be given off by the-distributing elementinto said outer miXing chamber, and a valve organization forming a separating wall between the outer andinner mixing chambers and comprising tion, a stationary sleeve closely surrounding saidvalve body and having slots to regist-er with the slots ofsaid valve body, said base having air openings open to said air cating with the first mixing chamber and a valve organization forming a separating wall between the mixing chambers and ineluding a movably mounted valve body adjustably operable to regulate the quantum of the mixture which passes from the first to the second mixing chamber, said valve body having air openings open to said air passage and an automatically acting springheld valve normally closing said air openings. t

6. In a carbureter for internal combustion engines, in combination, an air passage, a fuel chamber, an annular wall separating said passage and said chamber and having an annular horizontal shoulder at its upper end, said shoulder having openings extending between its upper and lower faces, an absorbent distributing element surrounding said annular wall within the fuel chamber and extending to said shoulder, concentric outer and inner mixing chambers above said air passage, the latter opening into the outer mixing chamber, an annular valve rotatably mounted on said shoulder within the outer mixing chamber and controlling said openings, a valve organization forming a separating wall between said mixing chambers and including a rotatable cylindrical valve body having a normally closed base and having slots in its cylindrical portion and a stationary sleeve closely surrounding said valve body and having slots to register with the slots of said valve'body, and an operative connection between said cylindrical valve body and said annular valve. I

7 In a carbureter for internal combustion engines, in combination, an air passage, a fuel chamber, an annular wall separating said passage and saidchamber and r,

ings extending between its upper and lower faces, an absorbent distributlng element surrounding said annular wall within the fuel I chamberv and extending to sald shoulder,

concentric outer and inner mixing chambers '65 intovthe outer mixing chamber, an annular above saidair passage, the latter opening valve rotatably mounted on said shoulder within the outer mixing chamber and controlhng said openings, a valve organization forming. a separating wall between said mixing chambers and including arotatable cylindrical valve body having a normally closed base and having slots in its cylindrical portion and a stationary sleeve closely surrounding said valve body and having slots to reglster with the slots of sald valve body, and a spring spider operatively coni necting said cylindrical valve body and latter on its seat. V 1

S. In a carburetor for internal combustion engines, in combination, inner and outer concentric mixing chambers, an air said annular valve and acting to hold the passage communicating with the outer chamber, a fuel chamber, an absorbent distributing element submerged in the fuel 111 the fuel chamber, the wall separating said fuel chamber and outer mixing chamber having openings between sald chambers through whlch gaseous vapor maybe glven off by the distributing element into said outer mixing chamber, a valve organization forming a separating wall between the outer and inner mixing chambers and Coinprisinga rotatable cylindrical valve body having a normally closed baseand having slots in its cylindrical portion and a stationary sleeve closely surrounding said valve body and having slots to register with the slots of said valve body, a rotating fan mountedwithin said cylindrical valve body, said base having air openings open to said air passages, and an automatically acting spring-held valve normally closing said air openings and upon whose stem said fan is mounted.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES DE ruxxcsnvros,

Witnesses:

,RIcHARD L. LANNING,

T. HYLAND.

- Washington, I). G.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

